This one is hard to convey in pics. It is actally a very displayable calcite specimen, no problem. However, it is ALSO a very neat pseudomorph piece! The large discshaped calcites sit ON a cluster of large scalenoedhral crystals that turn out to be FLUORITE that had encased an original calcite crystal, filling in the space and crystallizing on the inside of the growing internal cavity as the calcite dissolved away over time. It reallly is much better in person and in fact, could be photo'd the other way with the sharp calcite-formed pseudo on top, as well. To me, though, its primarily a calcite with the replacement as an interesting "surprise" bonus.